A coroner's report obtained exclusively by RadarOnline uncovered new and shocking details about the death of Dr. Arnold Klein — Michael Jackson's kids' alleged biological father — who tragically passed away in California on Oct. 22, 2015.

“Was there no one there to say 'Look, you’re in such excruciating pain we need to call an ambulance?' No. He suffered for four days in excruciating pain, so finally 911 was called — and who called? He was the one!” the source blasted.

“Where are these people [who were supposed to care about Dr. Klein] when this guy was suffering for four days?” Do you think Dr. Arnold's death could have been prevented? Blast off in the comments below!

A coroner's report obtained exclusively by RadarOnline uncovered new and shocking details about the death of Dr. Arnold Klein — Michael Jackson's kids' alleged biological father — who tragically passed away in California on Oct. 22, 2015.

“Was there no one there to say 'Look, you’re in such excruciating pain we need to call an ambulance?' No. He suffered for four days in excruciating pain, so finally 911 was called — and who called? He was the one!” the source blasted.

“Where are these people [who were supposed to care about Dr. Klein] when this guy was suffering for four days?” Do you think Dr. Arnold's death could have been prevented? Blast off in the comments below!